helpers: fix non-atomic cache write

This was causing some values to be repeated more than once when using multiple tmux windows at the same time, for example for the RAM percentage in ram_percentage.sh. GitHub: fixes tmux-plugins#62
shiyanhui · Jan 5, 2023 · f609bed · f609bed
1 parent 9eb3dba
commit f609bed
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/scripts/helpers.sh b/scripts/helpers.sh
@@ -130,8 +130,10 @@ put_cache_val() {
   val="${*:2}"
   tmpdir="$(get_tmp_dir)"
   [ ! -d "$tmpdir" ] && mkdir -p "$tmpdir" && chmod 0700 "$tmpdir"
-  get_time >"$tmpdir/$key"
-  echo -n "$val" >>"$tmpdir/$key"
+  (
+    get_time
+    echo -n "$val"
+  ) >"$tmpdir/$key"
   echo -n "$val"
 }